Near-infrared evolution of brightest cluster galaxies in the most X-ray luminous clusters since z = 1

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Near-infrared evolution of brightest cluster galaxies in the most X-ray luminous clusters since z = 1. / Stott, J. P.; Edge, A. C.; Smith, G. P. et al.
In: Monthly Notices of the Royal Astronomical Society, Vol. 384, No. 4, 11.03.2008, p. 1502-1510.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Stott, JP, Edge, AC, Smith, GP, Swinbank, AM & Ebeling, H 2008, 'Near-infrared evolution of brightest cluster galaxies in the most X-ray luminous clusters since z = 1', Monthly Notices of the Royal Astronomical Society, vol. 384, no. 4, pp. 1502-1510. https://doi.org/10.1111/j.1365-2966.2007.12807.x

APA

Stott, J. P., Edge, A. C., Smith, G. P., Swinbank, A. M., & Ebeling, H. (2008). Near-infrared evolution of brightest cluster galaxies in the most X-ray luminous clusters since z = 1. Monthly Notices of the Royal Astronomical Society, 384(4), 1502-1510. https://doi.org/10.1111/j.1365-2966.2007.12807.x

Vancouver

Stott JP, Edge AC, Smith GP, Swinbank AM, Ebeling H. Near-infrared evolution of brightest cluster galaxies in the most X-ray luminous clusters since z = 1. Monthly Notices of the Royal Astronomical Society. 2008 Mar 11;384(4):1502-1510. Epub 2008 Feb 4. doi: 10.1111/j.1365-2966.2007.12807.x

Author

Stott, J. P. ; Edge, A. C. ; Smith, G. P. et al. / Near-infrared evolution of brightest cluster galaxies in the most X-ray luminous clusters since z = 1. In: Monthly Notices of the Royal Astronomical Society. 2008 ; Vol. 384, No. 4. pp. 1502-1510.

Bibtex

@article{36d9be6f646845c484bba4f770f43583,

title = "Near-infrared evolution of brightest cluster galaxies in the most X-ray luminous clusters since z = 1",

abstract = "We investigate the near-infrared evolution of brightest cluster galaxies (BCGs) from a sample of rich galaxy clusters since z ∼ 1. By employing an X-ray selection of L X > 10 44 erg s -1, we limit environmental effects by selecting BCGs in comparably high-density regions. We find a positive relationship between X-ray and near-infrared luminosity for BCGs in clusters with L X > 5 × 10 44 erg s -1. Applying a correction for this relation, we reduce the scatter in the BCG absolute magnitude by a factor of 30 per cent. The near-infrared J - K colour evolution demonstrates that the stellar population in BCGs has been in place since at least z = 2, and that we expect a shorter period of star formation than that predicted by current hierarchical merger models. We also confirm that there is a relationship between 'blue' J - K colour and the presence of BCG emission lines associated with star formation in cooling flows.",

keywords = "Cosmology: observations, Galaxies: clusters: general, Galaxies: elliptical and lenticular, cD, Galaxies: evolution, Infrared: galaxies",

author = "Stott, {J. P.} and Edge, {A. C.} and Smith, {G. P.} and Swinbank, {A. M.} and H. Ebeling",

year = "2008",

month = mar,

day = "11",

doi = "10.1111/j.1365-2966.2007.12807.x",

language = "English",

volume = "384",

pages = "1502--1510",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "OXFORD UNIV PRESS",

number = "4",

}

RIS

TY - JOUR

T1 - Near-infrared evolution of brightest cluster galaxies in the most X-ray luminous clusters since z = 1

AU - Stott, J. P.

AU - Edge, A. C.

AU - Smith, G. P.

AU - Swinbank, A. M.

AU - Ebeling, H.

PY - 2008/3/11

Y1 - 2008/3/11

N2 - We investigate the near-infrared evolution of brightest cluster galaxies (BCGs) from a sample of rich galaxy clusters since z ∼ 1. By employing an X-ray selection of L X > 10 44 erg s -1, we limit environmental effects by selecting BCGs in comparably high-density regions. We find a positive relationship between X-ray and near-infrared luminosity for BCGs in clusters with L X > 5 × 10 44 erg s -1. Applying a correction for this relation, we reduce the scatter in the BCG absolute magnitude by a factor of 30 per cent. The near-infrared J - K colour evolution demonstrates that the stellar population in BCGs has been in place since at least z = 2, and that we expect a shorter period of star formation than that predicted by current hierarchical merger models. We also confirm that there is a relationship between 'blue' J - K colour and the presence of BCG emission lines associated with star formation in cooling flows.

AB - We investigate the near-infrared evolution of brightest cluster galaxies (BCGs) from a sample of rich galaxy clusters since z ∼ 1. By employing an X-ray selection of L X > 10 44 erg s -1, we limit environmental effects by selecting BCGs in comparably high-density regions. We find a positive relationship between X-ray and near-infrared luminosity for BCGs in clusters with L X > 5 × 10 44 erg s -1. Applying a correction for this relation, we reduce the scatter in the BCG absolute magnitude by a factor of 30 per cent. The near-infrared J - K colour evolution demonstrates that the stellar population in BCGs has been in place since at least z = 2, and that we expect a shorter period of star formation than that predicted by current hierarchical merger models. We also confirm that there is a relationship between 'blue' J - K colour and the presence of BCG emission lines associated with star formation in cooling flows.

KW - Cosmology: observations

KW - Galaxies: clusters: general

KW - Galaxies: elliptical and lenticular, cD

KW - Galaxies: evolution

KW - Infrared: galaxies

U2 - 10.1111/j.1365-2966.2007.12807.x

DO - 10.1111/j.1365-2966.2007.12807.x

M3 - Journal article

AN - SCOPUS:40249083002

VL - 384

SP - 1502

EP - 1510

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -

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